Question

a)
$( - \frac{1}{3}) \times ( \frac{2}{7})$
b)
$( - \frac{5}{8}) \times ( - \frac{1}{4})$
c)
$( + \frac{4}{9}) \times ( - \frac{2}{3})$
d)
$( - \frac{3}{10}) \times ( - \frac{1}{2} )$
e)
$( + \frac{1}{13} ) \times ( - \frac{2}{5})$
f)
$( - 5) \times ( - \frac{2}{3} )$
g)
$( - \frac{1}{2} ) \times ( - \frac{3}{4}) \times ( - \frac{1}{4} )$
h)
$( + \frac{7}{5} ) \times ( - \frac{1}{10}) \times ( - \frac{1}{2} )$​

Answer 1

Vamos là.

a)

(-1/3) * (2/7) = -2/21

b)

(-5/8) * (-1/4) = 5/32

c)

(4/9) * (-2/5) = -8/45

d)

(-3/10) * (-1/2) = 3/20

e)

(1/13) * (-2/5) = -2/65

f)

(-5) * (-2/3) = 10/3

g)

(-1/2) * (-3/4) * (-1/4) = -3/32

h)

(7/5) * (-1/10) * (-1/2) = 7/100

Answer 2

Explicação passo-a-passo:

$a)( \frac{ - 1}{3} ) \times ( \frac{2}{7} ) = \frac{ - 2}{21}$

$b)( \frac{ - 5}{8} ) \times ( \frac{ - 1}{4} ) = \frac{5}{32}$

$c)( \frac{4}{9} ) \times ( \frac{ - 2}{3} ) = - \frac{8}{27}$

$d)( \frac{ - 3}{10} ) \times ( \frac{ - 1}{2} ) = \frac{3}{20}$

$e)( \frac{1}{3} ) \times ( \frac{ - 2}{5} ) = \frac{ - 2}{65}$

$f)( - 5) \times ( \frac{-2}{3} ) = \frac{ 10}{3}$

$g)( \frac{ - 1}{2} ) \times ( \frac{ - 3}{4} ) \times ( \frac{-1}{4} ) = \frac{-3}{32}$

$h)( \frac{7}{15} ) \times ( \frac{ - 1}{10} ) \times ( \frac{ - 1}{2} ) = \frac{7}{100}$